Unified Interior Regions

Arizona

The Southwest Region includes California, Nevada, and Arizona. The Regional Office, headquartered in Sacramento, provides Center oversight and support, facilitates internal and external collaborations, and works to further USGS strategic science directions.

States L2 Landing Page Tabs

Filter Total Items: 139
Date published: October 1, 2018
Status: Completed

Planetary Spatial Infrastructure LPSC 2016

Planetary Spatial Infrastructure: At the Intersection Of GIScience and Planetary Science

Wednesday March 23rd 2016, 1:30 PM Waterway Ballroom 4

Chairs: 

  • Samuel Lawrence
  • Daniella DellaGiustina
Date published: October 1, 2018
Status: Active

LPSC 2013 Town Hall on Planetary Mapping and Cartography

What is planetary mapping? When do you need to do planetary mapping? How is planetary mapping accomplished? Why is planetary mapping important to you? Planetary mapping is literally foundational to planetary science and exploration. This town hall meeting is intended to present to the general planetary community the need to take planetary and lunar data and turn it into useful...

Date published: October 1, 2018
Status: Active

NASA/USGS Planetary Geologic Mapping Program

The Astrogeology Team at USGS provides coordination of NASA's planetary geologic mapping program. Geologic mapping investigations of any imaged planetary body (except Earth) are proposed to NASA's Planetary Geology and Geophysics Program on an annual basis (generally due sometime between late April and early June) and then...

Date published: October 1, 2018
Status: Active

ISPRS

ISPRS is an international NGO devoted to the development of international cooperations for the advancement of knowlege, research, development and education in the Protogrammetry, Remote Sensing and Spatial Information Sciences (P&RS&SIS), their integration and application, to contribute to the well bieng of hunanity and sustainability of the environment.

Date published: October 1, 2018
Status: Active

IAU - WGCCRE

The IAU Working Group on Cartographic Coordinates and Rotational Elements (WGCCRE) has been given the responsibility by the International Astronomical Union to define the rotational elements of the planets, satellites, asteroids, and comets of the solar system on a systematic basis and to relate their cartographic coordinates rigorously to the rotational elements.

In...

Date published: October 1, 2018
Status: Active

Mars Ice Consortium

The Mars Ice Consortium is a joint project between the USGS Astrogeology Research Program (Flagstaff, AZ) and the Arizona State University Mars Space Flight Facilty (Tempe, AZ) to bring together a single resource for the exploration of martian ices. Much of this research is done at the USGS Flagstaff Science Center.

Date published: October 1, 2018
Status: Active

Planetary Data Workshop

 Planetary Data: Workshops for Users and Software Developers 

Date published: September 28, 2018
Status: Active

The Annex of the PDS Cartography & Imaging Sciences Node

The Annex of the PDS Cartography and Imaging Sciences Node (aka “Imaging” or IMG) is a data repository designed to support the public delivery of NASA-funded geospatial data products derived from PDS image data. Examples of geospatial, derived products supported include global mosaics and thematic maps of...

Date published: September 26, 2018
Status: Active

Meteor Crater Drill Cores

While inventorying the drill cuttings from Meteor Crater, we identified 31 boxes of drill core from the crater. Unfortunately, there was little or no documentation for these cores and we initially did not know the drill hole locations or any of the ancillary details. With the assistance of Dr. David Kring, we eventually determined the origin of all of the drill cores. We found...

Date published: September 26, 2018
Status: Active

Meteor Crater Sample Collection

Meteor Crater is a 180 m deep, 1.2 km diameter bowl-shaped impact crater in Northern Arizona, and has long been a terrestrial analog site for planetary exploration. During the 1960’s, Eugene Shoemaker trained NASA astronauts at the crater to prepare for the Apollo missions to the Moon. The Meteor Crater Sample Collection consists of geologic samples from the Meteor Crater...

Date published: September 26, 2018
Status: Active

Lunar Calibration ROLO (Robotic Lunar Observatory)

The USGS lunar calibration program provides radiometric calibration and sensor stability monitoring for space-based remote sensing instruments using the Moon as a reference source. This is a unique on-orbit calibration technique for solar reflectance wavelengths that requires no special flight hardware, only that the instrument must view the Moon. The unmatched stability of the lunar...

Date published: September 24, 2018
Status: Active

MRCTR GIS Lab

The USGS Astrogeology Mapping, Remote-sensing, Cartography, Technology, and Research (MRCTR, pronounced "Mercator") GIS Lab provides web-based resources aimed at the planetary research community. The lab supports Geographic Information Systems (GIS) graphical, statistical, and spatial tools for analyses of planetary data, including the distribution of planetary GIS tutorials,...

Filter Total Items: 126
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Year Published: 1995

Results of ground-water, surface-water, and water-chemistry monitoring, Black Mesa area, northeastern Arizona, 1994

The Black Mesa monitoring program is designed to document long-term effects of ground-water pumping from the N aquifer by industrial and municipal users. The N aquifer is the major source of water in the 5,400-square-mile Black Mesa area, and the ground water occurs under confined and unconfined conditions. Monitoring activities include continuous...

Littin, G.R.; Monroe, S.A.
Results of ground-water, surface-water, and water-chemistry monitoring, Black Mesa area, northeastern Arizona, 1994; 1995; WRI; 95-4238; Littin, G. R.; Monroe, S. A.

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Year Published: 1995

Sand-storage changes in the Colorado River downstream from the Paria and Little Colorado Rivers, June 1992 to February 1994

Graf, J.B.; Marlow, J.E.; Fisk, G.G.; Jansen, S.M.
Sand-storage changes in the Colorado River downstream from the Paria and Little Colorado Rivers, June 1992 to February 1994; 1995; OFR; 95-446; Graf, J. B.; Marlow, J. E.; Fisk, G. G.; Jansen, S. M.

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Year Published: 1995

Results of ground-water, surface-water, and water-quality monitoring, Black Mesa area, northeastern Arizona, 1992-93

No abstract available. 

Littin, G.R.; Monroe, S.A.
Results of ground-water, surface-water, and water-quality monitoring, Black Mesa area, northeastern Arizona, 1992-93; 1995; WRI; 95-4156; Littin, G. R.; Monroe, S. A.

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Year Published: 1995

Hydrogeology and deformation of sandbars in response to fluctuations in flow of the Colorado River in the Grand Canyon, Arizona

Rill erosion, slumping, and fissuring develop on seepage faces of many sandbars along the Colorado River in the Grand Canyon. These processes, observed at low river stage, are a response to residual head gradients in the sandbars caused by the river-stage fluctuation. Three sandbars were instrumented with sensors for continual monitoring of pore...

Carpenter, M.C.; Carruth, R.L.; Fink, J.B.; Boling, J.K.; Cluer, B.L.
Hydrogeology and deformation of sandbars in response to fluctuations in flow of the Colorado River in the Grand Canyon, Arizona; 1995; WRI; 95-4010; Carpenter, M. C.; Carruth, R. L.; Fink. J. B.; Boling, J. K.; Cluer, B. L.

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Year Published: 1995

Selected chemical characteristics and acute toxicity of urban stormwater, streamflow, and bed material, Maricopa County, Arizona

The chemistry and toxicity of urban stormwater, streamflow, and bed material in the Phoenix, Arizona, area were characterized to determine if urban stormwater could degrade the quality of streams. Toxic phases of stormwater (oil and grease, suspended solids, dissolved metals, and dissolved organics) were identified to aid water-quality managers...

Lopes, Thomas J.; Fossum, Kenneth D.
Selected chemical characteristics and acute toxicity of urban stormwater, streamflow, and bed material, Maricopa County, Arizona; 1995; WRI; 95-4074; Lopes, T. J.; Fossum, K. D.

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Year Published: 1995

Statistical summary of selected physical, chemical, and microbial characteristics, and estimates of constituent loads in urban stormwater, Maricopa County, Arizona

Stormwater and streamflow in the Phoenix, Arizona, area were monitored to determine the physical, chemical, and microbial characteristics of storm- water from areas having different land uses; to describe the characteristics of streamflow in a river that receives urban stormwater; and to estimate constituent loads in stormwater from unmonitored...

Lopes, T.J.; Fossum, K.D.; Phillips, J.V.; Monical, J.E.
Statistical summary of selected physical, chemical, and microbial characteristics, and estimates of constituent loads in urban stormwater, Maricopa County, Arizona; 1995; WRI; 94-4240; Lopes, T. J.; Fossum, K. D.; Phillips, J. V.; Monical, J. E.

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Year Published: 1995

Monitoring Channel Sand Storage in the Colorado River in Grand Canyon

Jansen, Samuel M.D.; Graf, Julia B.; Marlow, Jonathan E.; Fisk, Gregory G.
Monitoring Channel Sand Storage in the Colorado River in Grand Canyon; 1995; FS; 120-95; Jansen, Samuel M. D.; Graf, Julia B.; Marlow Jonathan E.; Fisk, Gregory G.

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Year Published: 1995

Water-level fluctuations, water temperatures, and tilts in sandbars -6.5R, 43.1L, and 172.3L, Grand Canyon, Arizona, 1990-93

Rill erosion, slumping, and fissuring develop on seepage faces of many sandbars along the Colorado River in the Grand Canyon at low river stage. Three sandbars were instrumented with sensors for continual monitoring of stage, pore pressure, ground-water temperature, and tilt to determine the relation between ground-water flow and sandbar...

Carpenter, Michael C.; Crosswhite, Jason A.; Carruth, R.L.
Water-level fluctuations, water temperatures, and tilts in sandbars -6.5R, 43.1L, and 172.3L, Grand Canyon, Arizona, 1990-93; 1995; OFR; 94-485; Carpenter, Michael C.; Crosswhite, Jason A.; Carruth, R. L.

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Year Published: 1995

Measurements of aquifer-storage change and specific yield using gravity surveys

Pinal Creek is an intermittent stream that drains a 200-square-mile alluvial basin in central Arizona. Large changes in water levels and aquifer storage occur in an alluvial aquifer near the stream in response to periodic recharge and ground-water withdrawals. Outflow components of the ground-water budget and hydraulic properties of the alluvium...

Pool, D.R.; Eychaner, J.H.

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Year Published: 1995

Measured and predicted velocity and longitudinal dispersion at steady and unsteady flow, Colorado River, Glen Canyon Dam to lake mead

The effect of unsteadiness or dam releases on velocity and longitudinal dispersion of flow was evaluated by injecting a fluorescent dye into the Colorado River below Glen Canyon Dam and sampling for dye concentration at selected sites downstream. In Glen Canyon, average flow velocity through the study reach increased directly with discharge, but...

Graf, J.B.
Measured and predicted velocity and longitudinal dispersion at steady and unsteady flow, Colorado River, Glen Canyon Dam to lake mead; 1995; Article; Journal; Water Resources Bulletin; Graf, J. B.

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Year Published: 1995

Cross-sectional area of the shallow alluvial aquifer at selected sites along the upper Santa Cruz River, Arizona

No abstract available. 

Carruth, Rob
Cross-sectional area of the shallow alluvial aquifer at selected sites along the upper Santa Cruz River, Arizona; 1995; WRI; 95-4112; Carruth, Robert L.

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Year Published: 1994

Accounting for Consumptive Use of Lower Colorado River Water in Arizona, California, Nevada, and Utah

In the Colorado River valley between the east end of Lake Mead and the international boundary with Mexico (see figure), the river is the principal source of water for agricultural, domestic, municipal, industrial, hydroelectric-power generation, and recreational purposes. Water is stored in surface reservoirs and in the river aquifer---permeable...

Owen-Joyce, Sandra J.; Wilson, Richard P.
Accounting for Consumptive Use of Lower Colorado River Water in Arizona, California, Nevada, and Utah; 1994; FS; 074-94; Owen-Joyce, Sandra J.; Wilson, Richard P.

Filter Total Items: 225
Satellite images showing landsat 7 and landsat 8 fire images on the western U.S.
June 29, 2017

Fires in the Western United States

On an average day during the fire season, multiple wildfires burn in the western United States. For example, 216 fires were active on July 7, 2017. Firefighters were battling 27 of these fires through ground and air support.

A few of the larger fires in early July were in Arizona, Washington, and Utah. As with many wildfires, 

...
Satellite image showing the Las Vegas, Lake Mead, Grand Canyon area
June 16, 2017

Satellite Image of the Las Vegas, Lake Mead, Grand Canyon Area

This image of the Las Vegas /Lake Mead / Grand Canyon area was acquired on June 16, 2017, with Indian Space Research Organization’s Resourcesat-2 AWiFS sensor. Images of this region can be useful to help detect changes in vegetation and water availability for growing desert communities.

May 31, 2017

New USGS Maps of Mars Reveal Ancient Oases

Flyover of the southeast Ceti Mensa map. Distinct groups of rock layers, called geologic units, are shaded in different colors, with dark browns representing the oldest rocks and green representing the youngest rocks. All of these rocks formed as wind-blown sand that became trapped in shallow, ephemeral lakes, similar to the wet playas of the desert southwest US. The

May 31, 2017

Reach-Scale Monitoring | Advances in Stream Gaging

The Arizona Water Science Center demonstrates new methods in Reach-Scale Monitoring to improve accuracy and measurability of high flow events. By installing pressure transducers and using LiDAR to measure topography data, hydrologists are able to simulate flows with two dimensional models which will help better calibrate stream gages. These advances have potential to aid

An extremely rare Mojave River western pond turtle was recently observed in the Mojave Desert.
May 4, 2017

An extremely rare Mojave River western pond turtle

An extremely rare Mojave River western pond turtle was recently observed by USGS scientists and staff from The Living Desert Zoo and Gardens in the Mojave Desert. Turtles of this population have rarely been seen since the late 1990s.

June 3, 2016

Particle Tracking

The Arizona Water Science Center discusses the use of a new method, called particle tracking, that will revolutionize the way USGS obtains stream flow data.

May 5, 2016

First Global Topographic Map of Mercury

An animation of the USGS topographic map of Mercury created using images from NASA’s MESSENGER spacecraft.

April 19, 2016

USGS: More Than a Workplace

Employees of the Arizona Water Science Center describe their experiences working for the USGS revealing that it is far more than just a workplace.

Sonoran desert spring wildflower display.
March 31, 2016

Sonoran Desert Wildflowers and Invasive Species

Ecosystems are changing at a rapid pace. It can be difficult to determine if a landscape is in need of restoration. In this photo of the spring wildflower bloom in the Sonoran desert, an invasive annual grass, Bromus rubens (red brome), is pervasive. Land managers have to make decisions about when, where, and how to intervene in a system. Does this grass pose a threat to

...
Image: Saguaro National Park, East Unit, Southern Arizona -  ca. 1935
March 14, 2016

Saguaro National Park, East Unit, Southern Arizona - ca. 1935

This camera station is located on a hill within the newly established Saguaro National Monument near Tucson. The view is northeast toward Agua Caliente Hill and looks down a gentle incline that drains into Tanque Verde Creek. The saguaro stand pictured here is a particularly memorable one because of the many large individuals and absence of small ones. It is an example of

...
Image shows the Colorado River cutting through the Grand Canyon
March 7, 2016

Colorado River through the Grand Canyon

A view of the Grand Canyon, with the Great Unconformity visible. Credit: Alex Demas, USGS.

Attribution:
Aerial view showing greenup of restoration plots in the lower Colorado River Delta following the 2014 Minute 319 pulse flow.
October 31, 2015

Aerial view of lower Colorado River

Aerial view showing the intense greenup of restoration plots in the lower Colorado River Delta following the 2014 Minute 319 pulse flow.

Filter Total Items: 187
USGS
May 5, 2015

Water availability in the middle San Pedro watershed in southeast Arizona is strongly dependent on climate and water use, according to a new water resource assessment by the U.S. Geological Survey, in cooperation with the Arizona Department of Water Resources.

Image: Female Golden Eagle with GPS-GSM Transmitter
April 8, 2015

Golden eagles in the Mojave Desert travel farther, to different areas, and at different times of the year than previously understood, according to research by the U.S. Geological Survey and partners from other federal agencies, academia and the private sector. 

collage of scientists conducting science related to each mission are
March 3, 2015

While the earth contains enough potash to meet the increased global demand for crop production and U.S. supplies are likely secure, some regions lack potash deposits needed for optimal food crop yields. According to a recent USGS global assessment of potash resources, the costs of importing potash long distances can limit its use and imports are subject to supply disruptions.

USGS science for a changing world logo
February 10, 2015

A new U.S. Geological Survey study shows how plants’ vulnerability to drought varies across the landscape; factors such as plant structure and soil type where the plant is growing can either make them more vulnerable or protect them from declines.

New (2014) Black Canyon City, Arizona US Topo quadrangle
January 7, 2015

Newly released US Topo maps for Arizona now feature mountain bike trails, segments of the Arizona National Scenic Trail and Public Land Survey System data. Several of the 1,880 new US Topo quadrangles for the state now display these selected new features along with other improved data layers.

USGS
December 18, 2014

Secretary of the Interior Sally Jewell announced today that Interior’s Southwest Climate Science Center is awarding nearly a million dollars to universities and other partners for research to guide managers of parks, refuges and other cultural and natural resources in planning how to help species and ecosystems adapt to climate change.

USGS
September 18, 2014

Scientists and technicians from the U.S. Geological Survey will be conducting field studies of flood flows from the recent heavy rains resulting from Tropical Storm Odile today.

USGS
September 8, 2014

Scientists and technicians from the U.S. Geological Survey will be conducting field studies of high water flows from the recent heavy rains in Phoenix along the Salt River today. 

USGS
August 21, 2014

U.S. Geological Survey field crews are measuring flooding after heavy rainfall occurred in northern portions of Maricopa County, Arizona.  

Filter Total Items: 84